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Université de Fribourg

Permafrost is warming at a global scale

Biskaborn, Boris K. ; Smith, Sharon L. ; Noetzli, Jeannette ; Matthes, Heidrun ; Vieira, Gonçalo ; Streletskiy, Dmitry A. ; Schoeneich, Philippe ; Romanovsky, Vladimir E. ; Lewkowicz, Antoni G. ; Abramov, Andrey ; Allard, Michel ; Boike, Julia ; Cable, William L. ; Christiansen, Hanne H. ; Delaloye, Reynald ; Diekmann, Bernhard ; Drozdov, Dmitry ; Etzelmüller, Bernd ; Grosse, Guido ; Guglielmin, Mauro ; Ingeman-Nielsen, Thomas ; Isaksen, Ketil ; Ishikawa, Mamoru ; Johansson, Margareta ; Johannsson, Halldor ; Joo, Anseok ; Kaverin, Dmitry ; Kholodov, Alexander ; Konstantinov, Pavel ; Kröger, Tim ; Lambiel, Christophe ; Lanckman, Jean-Pierre ; Luo, Dongliang ; Malkova, Galina ; Meiklejohn, Ian ; Moskalenko, Natalia ; Oliva, Marc ; Phillips, Marcia ; Ramos, Miguel ; Sannel, A. Britta K. ; Sergeev, Dmitrii ; Seybold, Cathy ; Skryabin, Pavel ; Vasiliev, Alexander ; Wu, Qingbai ; Yoshikawa, Kenji ; Zheleznyak, Mikhail ; Lantuit, Hugues

In: Nature Communications, 2019, vol. 10, no. 1, p. 264

Permafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has been compiled. Here we use a global data set of permafrost temperature time series from the Global Terrestrial Network for Permafrost to evaluate temperature change across...

Haute Ecole de Gestion & Tourisme

Modéliser les interactions socio-économiques des destinations touristiques du canton du Valais

Chevalley, Stéphanie ; Loubier, Jean-Christophe (Dir.)

Mémoire de bachelor : Haute Ecole de Gestion & Tourisme, 2018.

Dans ce travail de Bachelor, l’objectif principal est de modéliser les interactions socio- économiques des destinations touristiques du canton du Valais et d’identifier les avantages d’un tel modèle sur la compréhension de la dynamique économique touristique. Grâce à des simulations du modèle de Huff, il a pu être constaté que les stations valaisannes étaient en situation de...

Université de Fribourg

The influence of ant-attendance on aphid behaviour investigated with the electrical penetration graph technique

Rauch, Gisep ; Simon, Jean-Christophe ; Chaubet, Bernard ; Haack, Lucie ; Flatt, Thomas ; Weisser, Wolfgang W.

In: Entomologia Experimentalis et Applicata, 2002, no. 102, p. 13-20

For themutualistic interaction between the aphidMetopeurum fuscoviride Stroyan (Homoptera:Aphididae) and the ant Lasius niger L. (Hymenoptera: Formicidae) it has been shown that ant-tended aphids develop faster, reproduce at a higher rate, and live longer than aphids not tended by ants. We used electrical penetration graphs (EPG) to investigate if behavioural patterns differ between ant-tended...

Bibliothèque d'art et d'archéologie, Genève

Le MAH édite en numérique : le catalogue de l'œuvre de Jean-Pierre Saint-Ours, premier ouvrage édité par le MAH sous forme exclusivement numérique

Corboz, Noëlle ; Eusebio, Sara ; Musée d'art et d'histoire (Genève)

Tiré du site internet du blog des Musées d'art et d'histoire (http://blog.mahgeneve.ch): "Le 13 février dernier paraissait en ligne un important ouvrage édité par le Musée d'art et d'histoire et signé Anne de Herdt, Jean-Pierre Saint-Ours 1752-1809. Catalogue de l'œuvre peint et des sujets dessinés mythologiques, historiques et religieux.".

Université de Fribourg

Screening for Intestinal Carriage of Extended-spectrum Beta-lactamase–producing Enterobacteriaceae in Critically Ill Patients: Expected Benefits and Evidence-based Controversies

Zahar, Jean-Ralph ; Blot, Stijn ; Nordmann, Patrice ; Martischang, Romain ; Timsit, Jean-François ; Harbarth, Stephan ; Barbier, François

In: Clinical Infectious Diseases, 2018, p. -

The rising burden of intensive care unit (ICU)-acquired infections due to extended- spectrum beta-lactamase–producing Enterobacteriaceae (ESBL-E) strengthens the requirement for efficient prevention strategies. The detection of intestinal carriage of ESBL-E through active surveillance cultures (ASC) and the implementation of contact precautions (CP) in carriers are currently advocated in...

Université de Fribourg

What if dividends were tax-exempt? : Evidence from a natural experiment

Isakov, Dušan ; Pérignon, Christophe ; Weisskopf, Jean-Philippe

(Working Papers SES ; 498, revised)

We study the effect of dividend taxes on the payout and investment policy of listed firms and discuss their implications for agency problems. To do so, we exploit a unique setting in Switzerland where some, but not all, firms were suddenly able to pay tax-exempted dividends to their shareholders following the corporate tax reform of 2011. Using a difference-indifferences specification, we...

Université de Fribourg

Auditory time perception in Huntington’s disease

Vez, S. ; Köhli, J. ; Frey, B. ; Magezi, David A. ; Annoni, Jean-Marie ; Burgunder, J.-M.

In: Neuropsychologia, 2018, vol. 119, p. 247–252

Huntington's disease (HD) is characterized by early involvement of the striatum. It affects the pace of repetitive motor activity, as motor timing depends on basal ganglia activity. However, data are lacking on the impact of this process on auditory time perception in motor non-affected gene carriers.Objective: This work aims to test the performance in time perception of a group of mutation...

Université de Fribourg

Electrical spinal cord stimulation must preserve proprioception to enable locomotion in humans with spinal cord injury

Formento, Emanuele ; Minassian, Karen ; Wagner, Fabien ; Mignardot, Jean Baptiste ; Le Goff-Mignardot, Camille G. ; Rowald, Andreas ; Bloch, Jocelyne ; Micera, Silvestro ; Capogrosso, Marco ; Courtine, Gregoire

In: Nature Neuroscience, 2018, vol. 21, no. 12, p. 1728–1741

Epidural electrical stimulation (EES) of the spinal cord restores locomotion in animal models of spinal cord injury but is less effective in humans. Here we hypothesized that this interspecies discrepancy is due to interference between EES and proprioceptive information in humans. Computational simulations and preclinical and clinical experiments reveal that EES blocks a significant amount of...